Group velocity at smooth points of hyperbolic characteristic varieties
Autour de l'analyse microlocale - Volume en l'honneur de Jean-Michel Bony, Astérisque, no. 284 (2003), pp. 265-269. 
@incollection{AST_2003__284__265_0,
     author = {Rauch, Jeffrey},
     title = {Group velocity at smooth points of hyperbolic characteristic varieties},
     booktitle = {Autour de l'analyse microlocale - Volume en l'honneur de Jean-Michel Bony},
     editor = {Lebeau Gilles},
     series = {Ast\'erisque},
     pages = {265--269},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {284},
     year = {2003},
     mrnumber = {2003423},
     zbl = {1051.35039},
     language = {en},
     url = {http://www.numdam.org/item/AST_2003__284__265_0/}
}
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Rauch, Jeffrey. Group velocity at smooth points of hyperbolic characteristic varieties, dans Autour de l'analyse microlocale - Volume en l'honneur de Jean-Michel Bony, Astérisque, no. 284 (2003), pp. 265-269. http://www.numdam.org/item/AST_2003__284__265_0/

[AR] D. Alterman and J. Rauch, Diffractive nonlinear geometric optics for short puises, SIAM J. Appl. Analysis, to appear, preprint available at www.math.lsa.umich.edu/~rauch. | MR | Zbl

[BR] R. Benedetti and J.-L. Risler, Real Algebraic and Semialgebraic Sets, Actualités Mathématiques, Hermann (1990). | MR | Zbl

[BS] J.-M. Bony and P. Shapira, Existence et prolongement des solutions holomorphes des équations aux dérivées partielles, Invent. Math. 17, 95-105 (1972). | DOI | EuDML | Numdam | MR | Zbl

[C] R. Courant, Methods of Mathematical Physics Vol. II, Interscience (1962). | MR | Zbl

[G] L. Gårding, Local hyperbolicity, Israel J. Math. 13, 65-81 (1972). | DOI | MR | Zbl

[H] L. Hörmander, The Analysis of Linear Partial Differential Operators I, II, Springer-Verlag (1983). | MR | Zbl

[MR] G. Métivier, J. Rauch, Real and complex regularity are equivalent for hyperbolic characteristic varieties, preprint available at www.math.lsa.umich.edu/~rauch. | MR | Zbl